WO2003004128A1 - A filter cartridge - Google Patents

A filter cartridge Download PDF

Info

Publication number
WO2003004128A1
WO2003004128A1 PCT/AU2002/000879 AU0200879W WO03004128A1 WO 2003004128 A1 WO2003004128 A1 WO 2003004128A1 AU 0200879 W AU0200879 W AU 0200879W WO 03004128 A1 WO03004128 A1 WO 03004128A1
Authority
WO
WIPO (PCT)
Prior art keywords
screen
vanes
spacer means
filter elements
return flow
Prior art date
Application number
PCT/AU2002/000879
Other languages
French (fr)
Inventor
Philip Charles Marheine
Original Assignee
Filter Technology Australia Pty Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Filter Technology Australia Pty Limited filed Critical Filter Technology Australia Pty Limited
Priority to MXPA04000005A priority Critical patent/MXPA04000005A/en
Priority to NZ530298A priority patent/NZ530298A/en
Priority to EP02742523A priority patent/EP1412048B1/en
Priority to DE60231308T priority patent/DE60231308D1/en
Priority to US10/482,305 priority patent/US8061529B2/en
Priority to AU2002344693A priority patent/AU2002344693B2/en
Priority to CA2452010A priority patent/CA2452010C/en
Publication of WO2003004128A1 publication Critical patent/WO2003004128A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • B01D29/07—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported with corrugated, folded or wound filtering sheets
    • B01D29/072—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported with corrugated, folded or wound filtering sheets ring shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • B01D29/07—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported with corrugated, folded or wound filtering sheets
    • B01D29/073—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported with corrugated, folded or wound filtering sheets with wound filtering sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter

Definitions

  • THIS INVENTION relates to a filter cartridge and in particular, but not
  • a filter cartridge suitable for filtering oil or fuel.
  • Filters are known that employ an outer filter body holding disposable filter
  • the outer body usually has a cylindrical housing and a cap, a coaxial
  • the plastic casing has integrally formed grate-like
  • the casing is also dimensioned to closely surround the paper media.
  • the filter is also dimensioned to closely surround the paper media.
  • cartridges are stackable within the filter housing which can retain a plurality of
  • Each casing is made from
  • the central pipe in this case is an inlet pipe rather than a return pipe.
  • the paper rolls have a central bore made of cardboard
  • the fluid collector has closely spaced concentric ridges
  • Gaps in each ridge allows radial return flow to the central
  • a fluid collector is provided in an end wall of the housing, the fluid collector has
  • the gauze may become depressed by the
  • the present invention adopts a completely different approach to the problem
  • filter cartridge having a hollow outer body
  • a filter element having an inlet end and an outlet end and being held in the outer body and there being a return flow passage adjacent the outlet end, spacer means
  • the spacer means comprises
  • the screen being disposed between the filter element and the
  • the hollow outer body has openings at each end, a pair of said
  • spacer means being disposed between the respective filter elements, the spacer
  • the spacer means comprises radially spaced inner and outer ring
  • vanes being said screen support and providing the return flow passage between the
  • the spacer means comprises two separate spacer means with
  • the spacer means is wheel-like having a central hub and an outer
  • the spacer means comprises two identical spacers slid into the
  • the filter elements are paper rolls and the hollow body includes
  • Figure 1 is a longitudinal section through a filter element according to the
  • the filter element being cylindrical in transverse cross section
  • Figures 2 and 3 are respective section and plan views of a typical spacer two
  • FIGs 4 and 5 are respective side and plan views of a mesh screen suitable
  • Figure 6 is a part section showing the structure of the mesh screen of Figures
  • spacer means 16 located centrally within the hollow body 1 1 .
  • Each of the paper rolls 14 and 15 include a central cylindrical core 16 so that
  • a return pipe(not shown) can be inserted through the cartridge when the cartridge
  • spacer means 16 is made from two
  • the spacer 18 comprises an outer ring 19 and
  • the inner ring 20 has four apertures or recesses 21 on its top and
  • apertures 21 making a total of eight, the apertures provide flow through passages
  • plastic connector portions 22 extend radially between
  • the outer body 1 1 is made from a relatively rigid plastics material as
  • the spacers 18 are the spacers 18, the dimensions of the spacers 18 are selected so that the spacers
  • Mesh screens 22 are placed in position atop the spacers 18 prior to insertion
  • the mesh screen is, in this embodiment,

Abstract

A filter cartridge (10), in this case comprising an injection moulded cylindrical plastics body (11) having spaced anti-tracking ribs (12) which are disposed unevenly along the inner surface (13) of the hollow body (11). First and second paper rolls as filter elements (14 and 15) have been pushed under compression into the hollow body (11) and are separated by spacer means (16) located centrally within the hollow body (11). Spacer means (16) is made from two separate spacers (18) which are generally made in the form of a spoked wheel type arrangement. Each spacer (18) comprises an outer ring (19) and an inner ring (20), the inner ring (20) has four apertures or recesses (21) on its top and offset by 45 degrees equally on its opposite side are four more equally spaced apertures (21) making a total of eight, the apertures provide flow through passages (21) through the inner ring (20), plastic connector portions (22) extend radially between the rings (19 and 20).

Description

A FILTER CARTRIDGE
TECHNICAL FIELD OF THE INVENTION
THIS INVENTION relates to a filter cartridge and in particular, but not
limited to, a filter cartridge suitable for filtering oil or fuel.
BACKGROUND TO THE INVENTION
Filters are known that employ an outer filter body holding disposable filter
cartridges, the outer body usually has a cylindrical housing and a cap, a coaxial
return pipe usually has a threaded end and the cap screws onto the threaded end
to clamp the cartridges in operative position in the housing. Liquid flows though an
inlet, through filter media in the cartridges and out through the return pipe. Spent
cartridges are simply exchanged with new ones. Typical cartridges are known that
are made from a paper roll held in a plastics or metal cylinder. An example is
described in WO/0037232. There are various alternative constructions and flow
modalities used.
European patent application No. P 0 556 506A1 describes a modular filter
system consisting of cartridges made from a tightly wrapped paper filter media
retained in a plastic casing. The plastic casing has integrally formed grate-like
configuration on its top and bottom surfaces to allow fluid to enter an exit the filter.
The casing is also dimensioned to closely surround the paper media. The filter
cartridges are stackable within the filter housing which can retain a plurality of
cartridges thereby increasing the capacity of the filter. Each casing is made from
identical top and bottom halves where the cylindrical walls clip together around the
paper roll. When two cartridges are used the grid like top of one cartridge a butts the grid-like bottom of the other so that liquid flows from one cartridge to the next
in series. Thus liquid flows one way, from one end only and is recovered out the
other end. The central pipe in this case is an inlet pipe rather than a return pipe.
Other arrangements are known where liquid flows simultaneously into the
filter in opposite directions and is recovered centrally, see for example Australian
Patent 729523 and US Patent 4,792,397.
Australian Patent 729523 and WO/0037232 describe an injection moulded
filter cartridge filled with a paper roll filter media. Unlike the cartridge of European
patent application No. P 0 556 506A1, the cartridge is open ended and does not
employ grate-like ends. This allows a press to be used to insert paper rolls under
pressure. In one cartridge opposite ends of the cartridge are completely open so the
cartridge is effectively a tube with two back-to-back paper rolls separated by gauze
providing a return flow path. The paper rolls have a central bore made of cardboard
for a return pipe. Thus when the cartridge is clamped inside a filter container liquid
flows from an inlet in the container in both ends of the cartridge, through the paper
rolls and is recovered by flowing out the ends of the paper rolls through a common
return path formed by the gauze to the central return pipe. The gauze separates the
confronting ends of the rolls and provides a flow path for the filtered liquid. Gauze
is also used in the arrangement of Australian patent 659793 to separate two paper
rolls in a metal cannister.
In US Patent 4,792,397 back-to-back paper rolls are used in a similar
arrangement Australian Patent 729523 and WO/0037232 except instead of gauze
being used to separate the rolls 4,792,397 uses a specially made fluid collector between the rolls. The fluid collector has closely spaced concentric ridges
projecting from opposite sides of a substantially flat portion, pressure equalisation
holes pass through the flat portion. The ridges push into the paper rolls on opposite
sides of the collectors. Gaps in each ridge allows radial return flow to the central
return pipe.
In Australian patent 650176 a metal canister is provided with end wall
depressionsto improve radial return flow. InAustralian patent application 59243/00
a fluid collector is provided in an end wall of the housing, the fluid collector has
lands in the form of sectors of a circle separated by radial flow passages.
The prevailing design criteria adopted in all these instances is to support the
paper across its ends in an effort to maintain the return flow and minimise
blockages that might impede flow as the paper collapses. Since the filters are
pressurised as the filter media ages and becomes loaded it may distort in the region
of the return flow leading to blockages. The gauze may become depressed by the
paper being forced across the gap. Thus in the above examples it is usual to provide
a substantial amount of support at the end of the paper roll with fluid collectors
with relatively large flow paths being preferred to wire gauze.
The present invention adopts a completely different approach to the problem
of supporting the roll while maintaining greater efficiency of return flow across the
filter.
OUTLINE OF THE INVENTION
In one aspect there is provided filter cartridge having a hollow outer body,
a filter element having an inlet end and an outlet end and being held in the outer body and there being a return flow passage adjacent the outlet end, spacer means
defining the return flow passage, characterised in that the spacer means comprises
an axially extending screen support member and a screen supported on the screen
support member, the screen being disposed between the filter element and the
screen support member for flow of filtrate though the screen into the return flow
passage.
Preferably, the hollow outer body has openings at each end, a pair of said
filter elements being held in longitudinally spaced relation in the outer body, said
spacer means being disposed between the respective filter elements, the spacer
means having opposite longitudinally spaced apart screen supports, and a
respective said screen being supported on said spaced apart screen supports, each
screen being disposed between a respective filter element and the screen support
for flow of filtrate though the screens into the return flow passage.
Preferably, the spacer means comprises radially spaced inner and outer ring
members held apart by circumferentially spaced radially extending vanes
connecting the ring members together, the vanes extending longitudinally and
having opposite edges forming open sectors between the vanes, the edges of the
vanes being said screen support and providing the return flow passage between the
vanes, the inner ring having flow through passage means communicating with the
return flow passage.
Preferably, the spacer means comprises two separate spacer means with
circumferentially offset sets of vanes. Preferably, the spacer means is wheel-like having a central hub and an outer
rim connected by circumferentially spaced radial spoke means, the central hub
having flow through passage means enabling flow of filtrate from a region adjacent
the radial spoke means to a central passage means in the hub.
Preferably, the spacer means comprises two identical spacers slid into the
hollow body and located centrally between longitudinally spaced circumferentially
extending anti-tracking ribs in an inner wall of the hollow body.
Preferably, the filter elements are paper rolls and the hollow body includes
spaced ribs projecting from an inner wall thereof and impinging upon the filter
elements.
BRIEF DESCRIPTION OF THE DRAWINGS
In order that the present invention can be more readily understood and be
put into practical effect, reference will now be made to the accompanying drawings
which illustrate a preferred embodiment of the invention and wherein:
Figure 1 is a longitudinal section through a filter element according to the
present invention, the filter element being cylindrical in transverse cross section;
Figures 2 and 3 are respective section and plan views of a typical spacer two
such spacers being employed in the Figure 1 embodiment;
Figures 4 and 5 are respective side and plan views of a mesh screen suitable
for use with the spacer of Figures 2 and 3; and
Figure 6 is a part section showing the structure of the mesh screen of Figures
4 and 5. METHOD OF PERFORMANCE
Referring to the drawings and initially to Figure 1 there is illustrated a filter
cartridge 10, in this case comprising an injection moulded cylindrical plastics body
1 1 having spaced anti-tracking ribs 12 which are disposed unevenly along the inner
surface 13 of the hollow body 1 1 . First and second paper rolls as filter elements 14
and 15 have been pushed under compression into the hollow body 1 1 and are
separated by spacer means 16 located centrally within the hollow body 1 1 .
Each of the paper rolls 14 and 15 include a central cylindrical core 16 so that
a return pipe(not shown) can be inserted through the cartridge when the cartridge
is clamped within a housing (not shown). Fluid flows in the direction of the arrows
through the filters back and radially through the spacer 16 and through apertures
17 so that filtrate travels to the return pipe (not shown).
In the illustrated embodiment the spacer means 16 is made from two
separate spacers 18 which are generally made in the form of a spoked wheei type
arrangement as illustrated in Figures 2 and 3. Two spacers are used because a
single spacer of the same size would be too rigid to be inserted due to the ribs 12.
Referring to Figures 2 and 3 the spacer 18 comprises an outer ring 19 and
an inner ring 20, the inner ring 20 has four apertures or recesses 21 on its top and
offset by 45 degrees equally on its opposite side are four more equally spaced
apertures 21 making a total of eight, the apertures provide flow through passages
21 through the inner ring 20, plastic connector portions 22 extend radially between
the rings 19 and 20. Since the outer body 1 1 is made from a relatively rigid plastics material as
are the spacers 18, the dimensions of the spacers 18 are selected so that the spacers
18 can be pushed into position over the ridges 12.
Mesh screens 22 are placed in position atop the spacers 18 prior to insertion
of the paper filter elements 14 and 15.
Preferred mesh screens are illustrated in Figures 4, 5 and 6, the mesh screens
include tapered screen elements 23. The mesh screen is, in this embodiment,
preferably injection moulded and formed with marginal edge sections 25 adjacent
the central opening 24 and outer peripheral marginal edge sections 26 formed so
as to inhibit any fraying that might result in portions of the mesh screen being
dislodged into the filtrate.
Whilst the above has been given by way of illustrative example of the
present invention many variations and modifications thereto will be apparent to
those skilled in the art without departing from the broad ambit and scope of the
invention as set out in the appended claims.

Claims

1. A filter cartridge having a hollow outer body, a filter element having an inlet
end and an outlet end and being held in the outer body and there being a return
flow passage adjacent the outlet end, spacer means defining the return flow
passage, characterised in that the spacer means comprises an axially extending
screen support member and a screen supported on the screen support member, the
screen being disposed between the filter element and the screen support member
for flow of filtrate though the screen into the return flow passage.
2. A filter cartridge according to claim 1 wherein the hollow outer body has
openings at each end, a pair of said filter elements being held in longitudinally
spaced relation in the outer body, said spacer means being disposed between the
respective filter elements, the spacer means having opposite longitudinally spaced
apart screen supports, and a respective said screen being supported on said spaced
apart screen supports, each screen being disposed between a respective filter
element and the screen support for flow of fi Itrate though the screens into the return
flow passage.
3. A filter cartridge according to claim 1 wherein the spacer means comprises
radially spaced inner and outer ring members held apart by circumferentially
spaced radially extending vanes connecting the ring members together, the vanes
extending longitudinally and having opposite edges forming open sectors between
the vanes, the edges of the vanes being said screen support and providing the return
flow passage between the vanes, the inner ring having flow through passage means
communicating with the return flow passage.
4. A filter cartridge according to claim 1 wherein the spacer means comprises
two separate spacer means with circumferentially offset sets of vanes.
5. A filter cartridge according to claim 1 wherein the spacer means is wheel¬
like having a central hub and an outer rim connected by circumferentially spaced
radial spoke means, the central hub having flow through passage means enabling
flow of filtrate from a region adjacent the radial spoke means to a central passage
means in the hub.
6. A filter cartridge according to claim 1 wherein the spacer means comprises
two identical spacers slid into the hollow body and located centrally between
longitudinally spaced circumferentially extending anti-tracking ribs in an inner wall
of the hollow body.
7. A filter cartridge according to claim 1 wherein the filter elements are paper
rolls and the hollow body includes spaced ribs projecting from an inner wall thereof
and impinging upon the filter elements.
8. A filter cartridge according to claim 1 wherein the hollow outer body has
openings at each end, a pair of said filter elements being held in longitudinally
spaced relation in the outer body, said spacer means being disposed between the
respective filter elements, the spacer means having opposite longitudinally spaced
apart screen supports, and a respective said screen being supported on said spaced
apart screen supports, each screen being disposed between a respective filter
element and the screen support for flow of filtrate though the screens into the return
flow passage, the spacer means comprises radially spaced inner and outer ring
members held apart by circumferentially spaced radially extending vanes connecting the ring members together, the vanes extending longitudinally and
having opposite edges forming open sectors between the vanes, the edges of the
vanes being said screen supports and providingthe return flow passage between the
vanes, the inner ring having flow through passage means communicating with the
return flow passage.
9. A filter cartridge according to claim 1 wherein the hollow outer body has
openings at each end, a pair of said filter elements being held in longitudinally
spaced relation in the outer body, said spacer means being disposed between the
respective filter elements, the spacer means having opposite longitudinally spaced
apart screen supports, and a respective said screen being supported on said spaced
apart screen supports, each screen being disposed between a respective filter
element and the screen support for flow of filtrate though the screens into the return
flow passage and the spacer means comprises two separate spacer means with
circumferentially offset sets of vanes.
10. A filter cartridge according to claim 1 wherein the hollow outer body has
openings at each end, a pair of said filter elements being held in longitudinally
spaced relation in the outer body, said spacer means being disposed between the
respective filter elements, the spacer means having opposite longitudinally spaced
apart screen supports, and a respective said screen being supported on said spaced
apart screen supports, each screen being disposed between a respective filter
element and the screen support for flow of filtrate though the screens into the return
flow passage, the spacer means is wheel-like having a central hub and an outer rim
connected by circumferentially spaced radial spoke means, the central hub having flow through passage means enabling flow of filtrate from a region adjacent the
radial spoke means to a central passage means in the hub.
1 1 . A filter cartridge according to claim 1 wherein the hollow outer body has
openings at each end, a pair of said filter elements being held in longitudinally
spaced relation in the outer body, said spacer means being disposed between the
respective filter elements, the spacer means having opposite longitudinally spaced
apart screen supports, and a respective said screen being supported on said spaced
apart screen supports, each screen being disposed between a respective filter
element and the screen support for flow of filtrate though the screens into the return
flow passage, the spacer means comprises two identical spacers slid into the hollow
body and located centrally between longitudinally spaced circumferentially
extending anti-tracking ribs in an inner wall of the hollow body.
12. A filter cartridge according to claim 1 wherein the hollow outer body has
openings at each end, a pair of said filter elements being held in longitudinally
spaced relation in the outer body, said spacer means being disposed between the
respective filter elements, the spacer means having opposite longitudinally spaced
apart screen supports, and a respective said screen being supported on said spaced
apart screen supports, each screen being disposed between a respective filter
element and the screen support for flow of filtrate though the screens into the return
flow passage and the filter elements are paper rolls and the hollow body includes
spaced ribs projecting from an inner wall thereof and impinging upon the filter
elements.
13. A filter cartridge according to claim 1 wherein the spacer means comprises
the two separate spacer means with circumferentially offset sets of vanes, each
spacer means comprising radially spaced inner and outer ring members held apart
by circumferentially spaced radially extending vanes connecting the ring members
together, the vanes extending longitudinally and having opposite edges forming
open sectors between the vanes, the edges of the vanes being said screen support
and providing the return flow passage between the vanes, the inner ring having
flow through passage means communicating with the return flow passage.
14. A filter cartridge according to claim 1 wherein the spacer means comprises
two identical spacers slid into the hollow body and located centrally between
longitudinally spaced circumferentially extending anti-tracking ribs in an innerwall
of the hollow body, each spacer means comprises radially spaced inner and outer
ring members held apart by circumferentially spaced radially extending vanes
connecting the ring members together, the vanes extending longitudinally and
having opposite edges forming open sectors between the vanes, the edges of the
vanes being said screen support and providingthe return flow passage between the
vanes, the inner ring having flow through passage means communicating with the
return flow passage.
15. A filter cartridge according to claim 1 wherein the spacer means comprises
radially spaced inner and outer ring members held apart by circumferentially
spaced radially extending vanes connecting the ring members together, the vanes
extending longitudinally and having opposite edges forming open sectors between
the vanes, the edges of the vanes being said screen support and providing the return flow passage between the vanes, the inner ring having flow through passage means
communicating with the return flow passage and the filter elements are paper rolls
and the hollow body includes spaced ribs projecting from an innerwall thereof and
impinging upon the filter elements.
16. A filter cartridge according to claim 1 wherein the spacer means comprises
two separate spacer means with circumferentially offset sets of vanes, each spacer
means is wheel-like having a central hub and an outer rim connected by
circumferentially spaced radial spoke means, the central hub having flow through
passage means enabling flow of filtrate from a region adjacent the radial spoke
means to a central passage means in the hub.
17. A filter cartridge according to claim 1 wherein the spacer means comprises
two separate spacer means with circumferentially offset sets of vanes and the filter
elements are paper rolls and the hollow body includes spaced ribs projecting from
an inner wall thereof and impinging upon the filter elements.
PCT/AU2002/000879 2001-07-03 2002-07-03 A filter cartridge WO2003004128A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
MXPA04000005A MXPA04000005A (en) 2001-07-03 2002-07-03 A filter cartridge.
NZ530298A NZ530298A (en) 2001-07-03 2002-07-03 A filter cartridge
EP02742523A EP1412048B1 (en) 2001-07-03 2002-07-03 A filter cartridge
DE60231308T DE60231308D1 (en) 2001-07-03 2002-07-03 FILTER CARTRIDGE
US10/482,305 US8061529B2 (en) 2001-07-03 2002-07-03 Filter cartridge
AU2002344693A AU2002344693B2 (en) 2001-07-03 2002-07-03 A filter cartridge
CA2452010A CA2452010C (en) 2001-07-03 2002-07-03 A filter cartridge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR6091A AUPR609101A0 (en) 2001-07-03 2001-07-03 A filter cartridge
AUPR6091 2001-07-03

Publications (1)

Publication Number Publication Date
WO2003004128A1 true WO2003004128A1 (en) 2003-01-16

Family

ID=3830055

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2002/000879 WO2003004128A1 (en) 2001-07-03 2002-07-03 A filter cartridge

Country Status (11)

Country Link
US (1) US8061529B2 (en)
EP (1) EP1412048B1 (en)
CN (1) CN1330400C (en)
AT (1) ATE423606T1 (en)
AU (2) AUPR609101A0 (en)
CA (1) CA2452010C (en)
DE (1) DE60231308D1 (en)
MX (1) MXPA04000005A (en)
NZ (1) NZ530298A (en)
WO (1) WO2003004128A1 (en)
ZA (1) ZA200309846B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004073831A1 (en) * 2003-02-19 2004-09-02 Robert Joseph Scilinato Axial depth filter
WO2020225559A1 (en) 2019-05-07 2020-11-12 Yara Uk Limited Fertilizer particles comprising iron
CN114100241A (en) * 2021-11-26 2022-03-01 无锡市兴盛环保设备有限公司 Improved multi-tube filter

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY137212A (en) * 2005-08-19 2009-01-30 Nep Holdings Malaysia Bhd Shower apparatus
GB0601888D0 (en) * 2006-01-31 2006-03-08 Psi Global Ltd Molded filter
DE102006054864A1 (en) * 2006-11-20 2008-05-21 Fürst Handelshaus GmbH Novel filter for fluid substances
US9551306B2 (en) * 2014-07-09 2017-01-24 Caterpillar Inc. Air filtration element
US11261102B2 (en) * 2020-05-01 2022-03-01 Jacob H. Berg Reverse osmosis prefilter system
CN111996532B (en) * 2020-08-25 2022-06-21 福建天甫电子材料有限公司 Preparation device and preparation process for electronic-grade aluminum etching liquid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792397A (en) * 1987-06-09 1988-12-20 Harvard Corporation Filter apparatus with sealing collector and flow control element
EP0556506A1 (en) * 1992-02-19 1993-08-25 Gilbert Broom Modular filter system
AU659793B3 (en) * 1994-09-01 1995-05-25 Filter Technology Australia Pty Limited Fluid filters

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115277A (en) * 1977-06-17 1978-09-19 Pioneer Filters, Inc. Blood filtering apparatus of graduated fiber density
US4366057A (en) * 1981-12-04 1982-12-28 Kirk Bridges, Inc. Oil filter seal membrane
US4579657A (en) * 1984-11-08 1986-04-01 Filmax, Incorporated Fluid filter and method of construction
DE3728825A1 (en) * 1986-08-28 1988-03-03 Fuji Photo Film Co Ltd FILTER CARTRIDGE
US4773990A (en) * 1986-10-15 1988-09-27 Filmax, Inc. Axial flow filter having entry and exit filtration stages and flow distribution means
AU1188088A (en) * 1987-01-26 1988-08-10 Paul Couwenbergs Filtering apparatus for contaminated fluids
US5486290A (en) * 1992-01-09 1996-01-23 Harvard Corporation Fluid filter collector with opposed ribs
US6270668B1 (en) * 1998-05-21 2001-08-07 Harvard Corporation Filter element sealing mechanism
FR2779359B1 (en) * 1998-06-05 2000-08-25 Alfa Laval Moatti Snc FILTER ELEMENT FOR USE IN A FILTRATION DEVICE
AUPP784098A0 (en) * 1998-12-18 1999-01-21 Filter Technology Australia Pty Limited A filter cartridge and process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792397A (en) * 1987-06-09 1988-12-20 Harvard Corporation Filter apparatus with sealing collector and flow control element
EP0556506A1 (en) * 1992-02-19 1993-08-25 Gilbert Broom Modular filter system
AU659793B3 (en) * 1994-09-01 1995-05-25 Filter Technology Australia Pty Limited Fluid filters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004073831A1 (en) * 2003-02-19 2004-09-02 Robert Joseph Scilinato Axial depth filter
WO2020225559A1 (en) 2019-05-07 2020-11-12 Yara Uk Limited Fertilizer particles comprising iron
CN114100241A (en) * 2021-11-26 2022-03-01 无锡市兴盛环保设备有限公司 Improved multi-tube filter

Also Published As

Publication number Publication date
US8061529B2 (en) 2011-11-22
AU2002344693B2 (en) 2007-12-13
CN1330400C (en) 2007-08-08
ATE423606T1 (en) 2009-03-15
CA2452010A1 (en) 2003-01-16
CA2452010C (en) 2010-09-14
AUPR609101A0 (en) 2001-07-26
EP1412048B1 (en) 2009-02-25
ZA200309846B (en) 2004-05-24
CN1522169A (en) 2004-08-18
US20040168970A1 (en) 2004-09-02
MXPA04000005A (en) 2004-05-21
DE60231308D1 (en) 2009-04-09
NZ530298A (en) 2005-05-27
EP1412048A1 (en) 2004-04-28
EP1412048A4 (en) 2005-09-14

Similar Documents

Publication Publication Date Title
US7837754B2 (en) Multi-element filter arrangement and methods
EP1960081B1 (en) Spin-on filter assembly and method of assembling
US4793922A (en) Filter element using non-woven mat and multi finger separators
US4704207A (en) Filter cartridge including external cell separators
JPS63287505A (en) Spacer element for guiding flowable medium
AU2002344693B2 (en) A filter cartridge
AU2002344693A1 (en) A filter cartridge
EP0177434B1 (en) Multiple-disc filter
US8640884B2 (en) Fluid treatment elements and fluid treatment arrangements with spaces between fluid treatment elements and methods for making and using them
SE525270C2 (en) Filter sector for use in rotating disk filters for separating pulp suspensions.
RU2227755C2 (en) Filtering element for use in filtering device
US6835309B2 (en) Filter cartridge assembly
AU2002344694B2 (en) A filter cartridge assembly
US20100219139A1 (en) Fluid treatment arrangements with fluid treatment elements and methods for making and using them
AU2002344694A1 (en) A filter cartridge assembly
KR100323574B1 (en) Disc Filter Elements and Disc Filter Systems
JPS6377506A (en) Filter cartridge and filter device
US20100206819A1 (en) Fluid treatment elements and fluid treatment arrangements with fluid treatment elements having uneven surfaces and methods for making and using them

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 530298

Country of ref document: NZ

WWE Wipo information: entry into national phase

Ref document number: 2003/09846

Country of ref document: ZA

Ref document number: 200309846

Country of ref document: ZA

WWE Wipo information: entry into national phase

Ref document number: 2002742523

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2452010

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2002344693

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 10482305

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2002813401X

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: PA/a/2004/000005

Country of ref document: MX

WWP Wipo information: published in national office

Ref document number: 2002742523

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 530298

Country of ref document: NZ

WWG Wipo information: grant in national office

Ref document number: 530298

Country of ref document: NZ

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Ref document number: JP